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 A363457 Positions of products of distinct primorial numbers (A129912) in the sequence of products of primorial numbers (A025487). 2
 1, 2, 4, 6, 9, 13, 20, 22, 27, 29, 43, 54, 55, 66, 72, 89, 93, 112, 114, 123, 140, 147, 150, 175, 186, 223, 232, 242, 246, 274, 279, 285, 290, 332, 371, 376, 425, 433, 439, 442, 488, 500, 518, 535, 539, 570, 619, 624, 656, 718, 747, 761, 783, 789, 816, 831, 860 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Numbers k such that A025487(k) is a term of A129912. Numbers k such that A051282(k) = A363455(k). What is the asymptotic behavior of this sequence? Empirically, it seems that a(n) ~ A * n^c, where A and c are constants. LINKS Amiram Eldar, Table of n, a(n) for n = 1..10000 FORMULA A025487(a(n)) = A129912(n). MATHEMATICA lps = Cases[Import["https://oeis.org/A025487/b025487.txt", "Table"], {_, _}][[;; , 2]]; prod = Cases[Import["https://oeis.org/A129912/b129912.txt", "Table"], {_, _}][[;; , 2]]; Position[lps, #] & /@ prod // Flatten CROSSREFS Cf. A002110, A025487, A051282, A129912, A363455. Sequence in context: A039902 A081659 A143586 * A344677 A241546 A280918 Adjacent sequences: A363454 A363455 A363456 * A363458 A363459 A363460 KEYWORD nonn AUTHOR Amiram Eldar, Jun 03 2023 STATUS approved

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Last modified March 2 09:28 EST 2024. Contains 370461 sequences. (Running on oeis4.)